CN1026370C - Gas isolated disconnecting switch and gas isolated switching device - Google Patents
Gas isolated disconnecting switch and gas isolated switching device Download PDFInfo
- Publication number
- CN1026370C CN1026370C CN92103359A CN92103359A CN1026370C CN 1026370 C CN1026370 C CN 1026370C CN 92103359 A CN92103359 A CN 92103359A CN 92103359 A CN92103359 A CN 92103359A CN 1026370 C CN1026370 C CN 1026370C
- Authority
- CN
- China
- Prior art keywords
- contact
- circuit
- gas
- movable part
- fixed component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
- H01H33/121—Load break switches
- H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Installation Of Bus-Bars (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Circuit Breakers (AREA)
Abstract
The present invention relates to a gas isolated disconnecting switch is provided which performs a sufficient restriking surge suppressing function. Under the closed condition of the gas isolated disconnecting switch, a main stationary member (6) engages with a main movable member (16) and an auxiliary movable member (17) with an auxiliary stationary member (8) respectively. Accordingly the portion of an auxiliary conductor (7) which passes through a cylindrical magnetic body (9) is short-circuited via the main stationary member (6) and the main movable member (16) no influence is induced on the operation of the circuit breaker disposed in the system. During the opening operation of the disconnecting switch, the auxiliary movable member (17) disengages with a time delay, at this moment, the current flows through the portion of the auxiliary conductor (7) which passes through the cylindrical magnetic body (9) to thereby perform a sufficient restriking surge suppressing function.
Description
The present invention is with a kind of to have a gas-insulated switchgear device that suppresses to produce during the switch motion electrophoresis function of striking sparks again relevant, specifically, relevant with a kind of gas-insulated switchgear device of suitable gas-insulated disconnect.
For example, in power station and transformer station, owing to utilize the disconnection of disconnect and the operation of closed circuit can produce so-called " surge of striking sparks again ", cause surge voltage, suppressing surge voltage is an important problems.
For this reason, such as Japan Patent JA-A-61-66510(1986) disclosed, " surge of striking sparks again " that causes owing to the switching manipulation of gas-insulated disconnect is a conductive body periphery of standing high pressure a columnar magnetic bodies to be installed in the usual way to suppress.
In above-mentioned prior art, not to owing to take in especially for the existence of the tubular magnetic bodies that suppresses " surge of striking sparks again " makes inductance (reactance) increase the influence that is caused.Therefore, when a circuit breaker disengagement failure electric current, between the contact point of this circuit breaker, applied an additional recovery voltage.This has just produced a problem.Sometimes circuit breaker can not cut off fault current.That is to say that by after zero point, a very high recovery voltage occur because the inductance that increases in the system makes between the contact point of circuit breaker at fault current, circuit breaker is struck sparks again, can not cut off harmful consequence of this fault current thereby produce.
The purpose of this invention is to provide a kind of gas-insulated disconnect and a kind of gas-insulated switchgear device, this gas-insulated disconnect and gas-insulated switchgear device do not influence a breaker operator that is configured in the system, also make this circuit breaker that the sufficient inhibition disengagement failure electric current reliably of striking sparks again in the electrophoresis function all the time is being provided for gas-insulated disconnect and gas-insulated switchgear device.
In order to achieve the above object, be provided with a short circuit contact circuit, in parallel with the conductor part in order to the magnetic bodies of the surge that suppresses to strike sparks again in the switching device.This shunt contact circuit only just disconnects when switching device is carried out the operation of open-circuit line.
Under stable state, the switching device closure.The short circuit contact circuit allows the conductor part that is provided with magnetic bodies shunt fault current.That is to say that because the impedance of conductor part that is provided with magnetic bodies is greater than the impedance of short circuit contact circuit, therefore most fault currents just flow through the short circuit contact circuit under stable state.This can not increase inductance, thereby has eliminated the extra increase of the recovery voltage that may occur between the contact point that is configured in this intrasystem circuit breaker.
On the other hand, carry out open-circuit line operating period at switching device, because shunt contact open circuit, the surge current of striking sparks again just all flows through the conductor part that is provided with magnetic bodies, thereby reduce high-frequency current component effectively by the loss on the conductor part of magnetic bodies, suppressed fully because the sparking surge voltage again that switching device causes.
Fig. 1 is the cutaway view of an embodiment of gas-insulated disconnect of the present invention;
Fig. 2 is the circuit diagram of explanation working condition embodiment illustrated in fig. 1;
Fig. 3 is the cutaway view of another embodiment of gas-insulated disconnect of the present invention;
Fig. 4 is the cutaway view of another embodiment of gas-insulated disconnect of the present invention;
Fig. 5 is that A-A embodiment illustrated in fig. 4 is to cutaway view;
Fig. 6 is the circuit diagram of explanation working condition embodiment illustrated in fig. 4;
Fig. 7 is the cutaway view of another embodiment of gas-insulated disconnect of the present invention;
Fig. 8 is the cutaway view of an embodiment of gas-insulated switchgear device of the present invention; And
Fig. 9 is the block diagram of a control system of explanation gas-insulated switchgear device shown in Figure 5.
Describe several gas-insulated disconnects and a kind of gas-insulated switchgear device that the present invention releases in detail hereinafter with reference to each accompanying drawing illustrated embodiment.
Fig. 1 is an embodiment who has adopted gas-insulated disconnect of the present invention.As seen from the figure, in this embodiment, the gas-insulated disconnect is to constitute by the part that switches on and off that is equipped with an electric wiring, and above-mentioned part is to be installed in one by a fixed component portion 3 and a movable part portion 4 to be full of sulphur hexafluoride (SF
6) constitute in the grounding container 2 of gas 1.
Fixed component portion 3 comprises that a fixed component portion conductor 5 as radome, one are contained in main fixed component 6 on the conductor 5, auxiliary-conductor 7, the secondary fixed component 8 and the tube that is enclosed within on auxiliary-conductor 7 circumference that are contained on the auxiliary-conductor 7 are opened magnetic bodies 9.By one a bavin 10 is installed as the fixed component portion conductor 5 of radome and is connected, and auxiliary-conductor 7 extends to a bus-bars conductor (not shown) of gas-insulated disconnect always with auxiliary-conductor 7.
In addition, movable part portion comprise a movable part portion radome 11, movable part 12, contact 13, one bavin 14 and a tubular shape conductor 15 are installed.In the end of movable part 12 a main movable part 16 is housed, is provided with a secondary movable part 17 in its other end.Wherein, main fixed component 6 constitutes a main fixed contact point, and main movable part 16 constitutes a main movable breaker point, and secondary fixed component 8 and secondary movable part 17 then constitute a secondary fixed contact point and a secondary movable breaker point respectively.
Situation when Fig. 1 shows disconnect and disconnects, movable part 12 just move towards the direction that disconnects fully, and the electric arc of sparking again 18 that produces.
Be illustrated below in conjunction with the working condition of circuit shown in Figure 2 this embodiment.Fig. 2 is equivalent to equivalent electric circuit embodiment illustrated in fig. 1.In this drawing, label 20 has represented that a main contactor being made of main fixed component 6 and main movable part 16, label 21 then represented a secondary contact point that is made of secondary fixed component 8 and secondary movable part 17.
In addition, label 22 is a main circuit that contains main contactor 20, and label 23 then is a secondary circuit that contains secondary contact point 21.Because secondary circuit 23 comprises tubular magnetic bodies 9, therefore impedance is very high, so that the fault current of the overwhelming majority flows through main circuit 22 under all closed stable state of main contactor 20 and secondary contact point 21, thereby main circuit 22 has just constituted short circuit contact circuit of the present invention.
At first, Fig. 2 (a) shows the situation that movable part 12 is shifted to the right side.At this moment, main movable part 16 and main fixed component 6 engagements, and secondary movable part 17 and secondary fixed component 8 engagements.This is corresponding to main contactor 20 and all closed situation of secondary contact point 21.Aforesaid this situation is defined as stable state in the present invention.
Under this stable state, the main circuit 22 that contains main contactor 20 is compared with the secondary circuit 23 that contains secondary contact 21, contains tubular magnetic bodies 9 owing to constitute the auxiliary-conductor 7 of secondary circuit 23, and therefore, the impedance of secondary circuit 23 that contains secondary contact point 21 is higher.Like this, under stable state, the fault current overwhelming majority flows through main circuit 22, thereby suppressed disconnect fault current is made the undue increase of impedance, between intrasystem circuit breaker contact, occur extra recovery voltage so that possibility that can not the disengagement failure electric current after by zero point thereby suppressed fault current.
Fig. 2 (b) and Fig. 2 (c) show the situation of disconnect in the opening operation process, at first be to disconnect main contactor 20, and consequence are to disconnect secondary contact point 21.
That is to say that when disconnect carried out opening operation, movable part 12 began from above-mentioned by the motion of direction shown in the arrow towards Fig. 1 of the position of right shift.Therefore, at first main movable part 16 breaks away from main fixed component 6, and main contactor 20 disconnects, i.e. situation shown in Fig. 2 (b).In this case, the electric current by disconnect all flows through secondary circuit 23.
After this, along with movable part 12 further continues motion towards direction shown in the arrow, the secondary fixed component 8 of secondary movable part 17 final disengagings, secondary contact point 21 begins to disconnect, and situation is shown in Fig. 2 (c).In the detach procedure, produce the electric arc 18 of striking sparks again at secondary contact point 21.Yet because the effect of tubular magnetic bodies 9, surge current is reduced, thereby has suppressed the surge voltage of striking sparks again reliably.
After reaching the state shown in Fig. 2 (c), main contactor 20 and secondary contact point 21 all disconnect fully, and disconnect just remains on the state of open-circuit line.
Therefore, this embodiment adopts tubular magnetic bodies 9 to suppress to strike sparks under the situation of electrophoresis function not damaging disconnect again, prevented from reliably to be configured in a circuit breaker in the system occur can not outage situation.
In the present invention, several magnetic materials are arranged,, can be used for making above-mentioned tubular magnetic bodies 9 as permalloy, iron, magnetic ferrites etc., but the most handy magnetic ferrites, because of magnetic ferrites is decayed very big to tens kilo hertzs of high-frequency current component to the hundreds of kilohertz.
In addition, in this embodiment, surge voltage be created in tubular magnetic bodies 9 vertically on, can arrive about two times of system works voltage peak.Therefore, must guarantee that the dielectric strength of main fixed component 6 and secondary fixed component 8 all holds out against this surge voltage.
Certainly, the overall structure of main fixed component 6 and main movable part 16 and secondary fixed component 8 and secondary movable part 17 requires to consider the equilibrium of configuration and size, and can correctly control the time dependent electric field that produces therefrom, the feasible electric arc 18 of striking sparks does not again occur between main fixed component 6 and the secondary movable part 17, and occurs in really between secondary fixed component 8 and the secondary movable part 17.
Fig. 3 is an alternative embodiment of the invention, and is the modified form to example shown in Figure 1.In this embodiment, adorned on the auxiliary-conductor 7 of fixed component portion 3 one have a follower spring 30 with the secondary fixed component 31 of ejector half.During the disconnect open-circuit line, movable part 12 beginning when direction shown in the arrow move, with the secondary fixed component 31 of ejector half since the stretching routine of follower spring 30 along with secondary movable part 17 moves one section predetermined distance, keep with it meshing.After this, break away from secondary movable part 17 with the secondary fixed component 31 of ejector half, because the effect of the stretching resistance of follower spring 30 returns to original state.
Therefore, adopt embodiment shown in Figure 3, by follow secondary movable part 17 motions with the secondary fixed component 31 of ejector half, really prevented from before initiatively transporting the main fixed component 6 of member 16 disengagings, just to disconnect the disconnection of secondary contact point 21, thereby eliminated between main movable part 16 and the main fixed component 6 phenomenon that produces the electric arc of striking sparks again, the assurance electric arc 18 of striking sparks again appears at all the time with between secondary fixed component 31 of ejector half and the secondary movable part 17 really.
Below with reference to Fig. 4 another embodiment of the present invention is described.
In this example shown in Figure 4, tubular magnetic bodies 9 is configured in the last separating part of movable part portion 4, as shown in Figure 4.Left end at the radome 11 of the movable part portion that is used as a conductor has a main fixed contact therefor 40, also have the movable contact 42 of master of an annular to be installed on the conductor 15, be adapted at that the action bars 41 along with movable part 12 moves together on the outer surface of conductor.Therefore, at the disconnect period of contact, main movable contact 42 contacts with main fixed contact therefor 40, thereby radome 11, main fixed contact therefor 40 and main movable contact lever 42 by movable part 12, movable part portion have formed a shunt contact circuit, so that under stable state, overwhelming majority line current flows through the radome 11 of the movable part portion of movable part 12, rather than flow through that part of passing tubular magnetic bodies 9 of conductor 15, thereby suppressed the effect of tubular magnetic bodies 9.
Fig. 5 shows the situation that the direction of arrow cut open for conductor 15 A-A ' along the line from Fig. 4 is seen.As seen from the figure, two grooves that extend longitudinally, radially separating on tubular shape conductor 15, have been opened.Cramp bar 43 that passes these two grooves of main movable contact 42 usefulness is fixed on the action bars 41, makes movable contact 42 to slide with action bars 41.
Therefore, identical with Fig. 2 situation, the equivalent electric circuit road that can draw embodiment shown in Figure 4, as shown in Figure 6.In this example, main fixed contact therefor 40 and main movable contact 42 constitute one first main contactor 200, and main fixed component 6 and movable part 12 then constitute one second main contactor 210.In addition, the radome 11 of movable part portion constitutes main circuit 22.
The working condition of embodiment shown in Figure 4 is described now.At first, in stable state, the closed supply line of disconnect, by the action of action bars 41, movable part 12 is arranged in the right side of figure, with fixed component 6 engagements.Simultaneously, main movable contact 42 and main fixed contact therefor 40 engagements.
Therefore, at this moment wait first main contactor 200 and second main contactor 210 all is closed, its equivalent current is shown in Fig. 6 (a).Because conductor 15 passes tubular magnetic bodies 9, have bigger inductance, therefore the line currents (comprising fault current) of the overwhelming majority do not flow through conductor 15, and flow through the main circuit 22 that the radome 11 by movable part portion is constituted.So just eliminate the increase of line inductance fully, determined to have got rid of the possibility that the work that is configured in intrasystem circuit breaker is produced harmful effect and disconnection is broken down.
Carry out in the process that disconnects at disconnect, action bars 41 beginnings are moved towards Fig. 4 left.The installation site of main movable contact 42 on action bars 41 selected like this, make the movable contact 42 of winner at first break away from main fixed contact therefor 40 during towards left movement, wait action bars 41 to be moved to the left one section predetermined distance back movable part 12 and break away from fixed component 6 again along with action bars 41.
The result is, when disconnect began to disconnect the operation of a circuit, disconnect forwarded situation shown in Fig. 6 (b) to from situation shown in Fig. 6 (a), and first make contact 200 is disconnected, and all electric currents that flow through main circuit 22 originally all move on to conductor 15.After this, shown in Fig. 6 (c), second main contactor 210 begins to disconnect, produce the electric arc 18 of striking sparks again, yet, during this time all electric currents have all moved on to the conductor 15 that passes tubular magnetic bodies 9, and the surge current of sparking again that produces owing to the opening operation of disconnect is by by 9 conductor surrounded 15 of tubular magnetic bodies.Like this, just in the surge voltage that suppressed really to strike sparks again, finished the operation of cutting off circuit.
Fig. 7 is an embodiment more of the present invention.In this example, tubular magnetic bodies 9 is configured in the last separating part of fixed component portion 3.Be used as that side that deviates from movable part portion 4 on the conductor 5 of a radome in fixed component portion a main fixed contact therefor 50 is housed.The movable contact 51 of master that also has an annular is enclosed within the periphery of conductor 7, can slide in the above.This main movable contact 51 is received on the coupling bar 52.
A push pedal 53 is housed on that end that faces movable part 12 of coupling bar 52 steady arm 54 then is housed at other battle array end of coupling bar 52.By steady arm 54, main movable contact 51 is fixed on the coupling bar 52.Coupling bar 52 whole being inserted in the tubular conductor 7 can be slided.In stable state, owing to connect the effect of the readjustment spring 55 that piece 56 fixed, coupling bar 52 is in position as shown in the figure.In addition, the connection situation between main movable contact 51 and the steady arm 54 is identical with the situation of example shown in Figure 5, and these two members are by interconnecting along the groove shown in the conductor 7.
The working condition of key-drawing 7 example illustrated now.Built in stablizing under the normal state, the disconnect closed circuit, movable part 12 is positioned at the right-hand of figure, engage with fixed component 6, and withstand in the push pedal 53, the reaction force that overcomes spring 55 is shifted coupling bar 52 onto the figure rear, makes movable contact 51 of winner and main fixed contact therefor 50 engagements.
If more than this situation explained that with reference to Fig. 6 (a), Fig. 6 (b) and Fig. 6 (c) be equivalent to the situation shown in Fig. 6 (a), this is identical with example case shown in Figure 4.Yet, in example shown in Figure 7, first main contactor 200 is made up of main fixed contact therefor 50 and main movable contact 51, second main contactor 210 is made up of fixed component 6 and movable part 12, and main circuit 22 is being made up of as the conductor 5 of radome and mounting bracket 10 fixed component side then.
Therefore, under this stable state, the line current of the overwhelming majority flows through by movable part 12, fixed component 6, mounting bracket 10, fixed component side and is used as conductor 5, the main fixed contact therefor 50 of radome and leads the low impedance circuit that movable contact 51 is constituted.。Because this short circuit contact circuit has been arranged, under stable state, just suppressed the influence of tubular magnetic bodies 9, the open-circuit operation of also fully having eliminated system break road device produces dysgenic possibility.
Carry out operating period of open circuit at disconnect, when movable part 12 begins left motion towards Fig. 7 from the state with fixed component 6 engagements, coupling bar 52 under the effect of spring 55, along with the motion of movable part 12, beginning back left.As a result, main movable contact 51 at first breaks away from main fixed contact therefor 50, and movable part 12 has also broken away from fixed component 6 then, becomes situation as shown in Figure 7.Become situation shown in Fig. 6 (b) and Fig. 6 (c) in succession from stable state working condition as Fig. 6 (a).Therefore, in the operating period of disconnect open circuit, the surge current of striking sparks again just flows through 9 conductor surrounded of tubular magnetic bodies really, has suppressed the surge voltage of striking sparks again reliably.
In addition, in Fig. 1 and embodiment shown in Figure 3, secondary fixed component 8 and secondary movable part 17, in fact all be combined into ejector half fixed component 31 and secondary movable part 17 and under stable state, be in the situation that is in contact with one another, mechanically do not contact and keep leaving each other a little gap yet also can be combined into.If the combination of these submembers has been done as above to adjust, then remain open circuit in stable state, so just do not have electric current also just not have the contact point wear problem by this circuit by secondary fixed component 8 and secondary movable part 17 or the circuit that constituted with secondary fixed component 31 of ejector half and secondary movable part 17.
Also have, Fig. 1 extremely each embodiment shown in Figure 7 shows the certain situation that the present invention is used for the gas-insulated disconnect, yet as seen from Figure 6, the present invention can be used for general gas-insulated power transformation system.That is to say, even in order to suppress to put a tubular magnetic bodies in this case by surge certain correct position on gas isolated bus-bars conductor of striking sparks again of 31 of gas-insulated disconnects, by contact point of adjunction, in parallel with the line conductor, also can reach purpose of the present invention.Therefore, figure 8 illustrates an instantiation of the gas-insulated switchgear device that is constituted when the present invention is used for argoshield insulation power transformation system below.
As seen from Figure 8, be in system on the gas insulated bus conductor 60 of certain correct position and be with a tubular magnetic bodies 61, the outside is covered with one grounding container 2 is kept the radome 62 of insulation, and it also is used as a conductor.In addition, a contact 63 and 64 are housed respectively on radome 62 that is used as a conductor and bus-bars conductor 60, and an annular movable part 65 that can slide in the above also is housed on the bus-bars conductor 60.
When movable part 65 is pushed to figure when right-hand, movable part just all contacts with these two contacts 63,64, thereby has formed a short circuit contact circuit 66, and this circuit is in parallel with the part that is with tubular magnetic bodies 61 of bus-bars conductor 60.In addition, in this example, near that opposite with radome 62 movable part 65 side is equipped with a radome 67, to keep the insulation to grounding container 2.
With an action bars 68 movable part 65 is slided on bus-bars conductor 60, be switched on or switched off contact circuit 66.
Below, the working condition of this example is illustrated, the controlled situation of contact circuit 66 is as follows, and under stable state, gas-insulated disconnect of connecting with gas isolated bus-bars conductor 60 is closed.At this moment, except fault current is zero zone, the conductor 60 that the fault current of the overwhelming majority is not centered on by tubular magnetic bodies 61.Only during disconnect cuts off the transition state of circuit, the conductor 60 that the surge current of striking sparks again that is produced is just centered on by tubular magnetic bodies 61.For this reason, between the function circuit 72 and 73 that is respectively gas-insulated disconnect 70 and contact circuit 66 configurations, connect one and delay circuit 74(as shown in Figure 9) to carry out the control sequence that before disconnection gas-insulated switch 70, disconnects contact circuit 66 immediately.
Therefore, with regard to this example, just can suppress the sparking surge voltage again that may occur effectively by putting a tubular magnetic bodies 61 on the bus-bars conductor that in a gas-insulated switchgear device, is positioned at certain appropriate location.
Below, be illustrated with regard to the inhibition effect of the above-mentioned safe surge voltage of striking sparks again.Above-mentioned tubular magnetic bodies to surge current caused loss can amount to into an equivalent resistance.If this equivalent resistance is chosen to be equal to or greater than the surge impedance of gas insulated bus, the surge voltage of then striking sparks again just be suppressed to be lower than 2pu(wherein 1pu be the peak value of system's operating voltage over the ground).
According to the present invention, in gas-insulated disconnect that has adopted the tubular magnetic bodies and gas-insulated switchgear device, the effect of tubular magnetic bodies is suppressed under steady-working state, therefore eliminated the extra growth that appears at the circuit breaker recovery voltage at two ends being disconnected during the disengagement failure electric current, this is because the existence of tubular magnetic bodies and this fault current are cut off by circuit breaker.But during the disconnection of disconnect and closed manipulation, the tubular magnetic bodies has just played effect, has suppressed the sparking surge voltage again that is produced on gas structure edge disconnect fully.
Claims (8)
1, a kind of gas-insulated switchgear device that is used for transformer station comprises: a busbar rod is arranged in the grounding container that is full of insulating gas; A circuit breaker is connected in series with above-mentioned bus rod; A disconnect is connected in series with above-mentioned circuit breaker; And tubular magnetic, be arranged on the part of above-mentioned busbar rod, in order to hold this part, it is characterized in that: described gas-insulated switchgear device also comprises a short circuit contact circuit, it is in parallel with the busbar rod that above-mentioned tubular magnetic holds, this short circuit contact circuit started its contact opening operation before described short circuit contact circuit was designed in above-mentioned disconnect operation, and still keep shunt contact circuit and contact to be in the contact off-state be in time interval of contact off-state at this disconnect during, whereby, can under the situation that does not harm above-mentioned circuit breaker outage current practice, disconnect be suppressed in its contact disconnection and the closed surge of sparking again that operating period produced.
2, gas-insulated switchgear device according to claim 1 is characterized in that, the conductor wire of described short circuit contact circuit is made of a tubular conductive body as tubular magnetic bodies shield member.
3, gas-insulated switchgear device according to claim 2, it is characterized in that, the contact site of described short circuit contact circuit is made of a main fixed component and the active member of annular, this main fixed component is to form in order to the tubular conductive body end as tubular magnetic bodies shield member, this annular movable part is designed to be and can slides near the bus-bars conductor that is enclosed within the current-carrying part in the tubular magnetic bodies, to be meshed with above-mentioned main fixed component.
4, gas-insulated switchgear device according to claim 1, it is characterized in that, the conductor wire of described short circuit contact circuit constitutes in order to the tubular conductive body as the shield member of tubular magnetic bodies by one, and the contact site of described short circuit contact circuit by one the main fixed component that forms in order to tubular electric conductor end and one as tubular magnetic bodies shield member can be with this main fixed component engagement, be fixed on the main movable part that an end also forms on the movable part of a secondary movable part and constitute.
5, gas-insulated switchgear device according to claim 4, it is characterized in that, described secondary movable part and a secondary fixed component that is positioned at the end of the conductor that the tubular magnetic bodies is housed are formed, even under the stable state of disconnect junction closure, in the middle of this two member, still leave a narrow gap, keep them not to be in contact with one another.
According to claim 1 or 3 described gas-insulated switchgear devices, it is characterized in that 6, the loss that described tubular magnetic bodies causes surge is equal to or greater than the surge characteristic of busbar when amounting to into equivalent resistance.
7, gas-insulated switchgear device according to claim 4 is characterized in that, the end that can the conductor of tubular magnetic bodies be housed with the secondary fixation means arrangement arranged of secondary movable part engagement on one is arranged.
8, gas-insulated switchgear device according to claim 7, it is characterized in that, described secondary fixed component be one have a follower spring with the secondary fixed component of ejector half, this member disconnects the back because the stretching routine of follower spring moves one section predetermined distance with secondary movable part at the short circuit contact circuit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP131592/91 | 1991-05-08 | ||
| JP3131592A JPH04332416A (en) | 1991-05-08 | 1991-05-08 | Gas disconnector and gas insulating switch device |
| JP131592/(1991) | 1991-05-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1066534A CN1066534A (en) | 1992-11-25 |
| CN1026370C true CN1026370C (en) | 1994-10-26 |
Family
ID=15061661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92103359A Expired - Fee Related CN1026370C (en) | 1991-05-08 | 1992-05-08 | Gas isolated disconnecting switch and gas isolated switching device |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5410116A (en) |
| EP (1) | EP0512366B1 (en) |
| JP (1) | JPH04332416A (en) |
| KR (1) | KR0126125B1 (en) |
| CN (1) | CN1026370C (en) |
| CA (1) | CA2068142C (en) |
| DE (1) | DE69213082T2 (en) |
| TW (1) | TW210409B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5889248A (en) * | 1997-09-08 | 1999-03-30 | Abb Power T&D Company Inc. | Operating mechanism for combined interrupter disconnect switch |
| WO2004049362A2 (en) * | 2002-11-21 | 2004-06-10 | Bang Harry H J | Electrical switch and method |
| CN1830123B (en) * | 2003-08-07 | 2012-02-08 | 阿雷瓦输配电公司 | Three-position ground switch |
| JP5252300B2 (en) * | 2009-04-02 | 2013-07-31 | 株式会社日立製作所 | Gas insulated switchgear |
| JP5434406B2 (en) * | 2009-09-09 | 2014-03-05 | 株式会社日立製作所 | Disconnector |
| EP2629313A1 (en) * | 2012-02-17 | 2013-08-21 | ABB Technology AG | Gas-insulated circuit breaker with nominal contact shielding arrangement |
| FR2989822A1 (en) * | 2012-04-23 | 2013-10-25 | Alstom Technology Ltd | Circuit interrupting electrical appliance e.g. disconnecting switch for use in metal-clad substation in metal casing filled with electrically insulating gas, has ring made of magnetic material and placed around arcing contact |
| TWI501496B (en) * | 2013-06-06 | 2015-09-21 | Chang Chun Petrochemical Co | Uninterruptible power protection apparatus and manufacturing system for producing electrolytic copper foil |
| CN105448578B (en) * | 2015-11-25 | 2018-03-06 | 河南平芝高压开关有限公司 | A kind of disconnecting switch and its conductor |
| EP3226274A1 (en) * | 2016-03-31 | 2017-10-04 | Siemens Aktiengesellschaft | Disconnect switch with arc division suitable for medium and high voltages and disconnection method using said disconnect switch |
| WO2019106841A1 (en) * | 2017-12-01 | 2019-06-06 | 株式会社 東芝 | Gas circuit breaker |
| CN110391108A (en) * | 2018-04-20 | 2019-10-29 | 金一凡 | A kind of Intelligent isolation switch that can measure conductor connection point and switch contact contact impedance |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3566055A (en) * | 1968-11-14 | 1971-02-23 | Porter Co Inc H K | Isolating circuit breaker |
| JPS50121775A (en) * | 1974-03-14 | 1975-09-23 | ||
| FR2422246A1 (en) * | 1978-04-07 | 1979-11-02 | Merlin Gerin | Discharge suppressor for gas filled circuit breakers - is both magnetically and pneumatically operated with vents and baffles angled inward being displaced from contacts as circuit is broken |
| JPH0683524B2 (en) * | 1984-09-05 | 1994-10-19 | 株式会社日立製作所 | Gas insulated electrical equipment |
-
1991
- 1991-05-08 JP JP3131592A patent/JPH04332416A/en active Pending
-
1992
- 1992-04-18 TW TW081103050A patent/TW210409B/zh active
- 1992-04-28 EP EP92107213A patent/EP0512366B1/en not_active Expired - Lifetime
- 1992-04-28 DE DE69213082T patent/DE69213082T2/en not_active Expired - Fee Related
- 1992-05-02 KR KR92007516A patent/KR0126125B1/en not_active IP Right Cessation
- 1992-05-07 CA CA002068142A patent/CA2068142C/en not_active Expired - Fee Related
- 1992-05-08 CN CN92103359A patent/CN1026370C/en not_active Expired - Fee Related
- 1992-05-08 US US07/879,997 patent/US5410116A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2068142A1 (en) | 1992-11-09 |
| KR920022339A (en) | 1992-12-19 |
| JPH04332416A (en) | 1992-11-19 |
| US5410116A (en) | 1995-04-25 |
| EP0512366B1 (en) | 1996-08-28 |
| EP0512366A3 (en) | 1993-06-09 |
| TW210409B (en) | 1993-08-01 |
| DE69213082D1 (en) | 1996-10-02 |
| DE69213082T2 (en) | 1997-02-20 |
| EP0512366A2 (en) | 1992-11-11 |
| KR0126125B1 (en) | 1997-12-22 |
| CA2068142C (en) | 1998-06-09 |
| CN1066534A (en) | 1992-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8081407B2 (en) | Compact disconnector circuit-breaker for an alternator | |
| CN1026370C (en) | Gas isolated disconnecting switch and gas isolated switching device | |
| EP2077569B1 (en) | Vacuum switchgear | |
| US8264803B2 (en) | Alternator circuit-breaker with an inserted resistance | |
| US7718913B2 (en) | Actuation by cylindrical CAM of a circuit-breaker for an alternator | |
| DE2460628B2 (en) | Electrical switchgear | |
| US7986061B2 (en) | Electrical switching device | |
| US3708638A (en) | Vacuum type electric circuit breaker | |
| KR20040010359A (en) | Switching device | |
| EP0065264B1 (en) | Gas-insulated switching apparatus | |
| US8901447B2 (en) | Circuit breaker with parallel rated current paths | |
| US4525612A (en) | Gas insulated switch | |
| US5750949A (en) | Metal-encapsulated, gas-insulated high-voltage circuit-breaker | |
| CA2325008A1 (en) | High-speed current-limiting switch | |
| US4445014A (en) | High-voltage disconnect switch | |
| KR20130045229A (en) | Cubicle-type gas-insulated switching apparatus | |
| CN1168556A (en) | Switching mechanism for gas insulated switch gear | |
| CN1048592C (en) | Surge suppression in electric apparatus | |
| KR100370103B1 (en) | Disconnecting switch of Gas Insulator Switchgear | |
| KR102657958B1 (en) | A handy type switch discharge and ground device | |
| CN114267559B (en) | A quick switch formula fault current limiting device for superhigh pressure system | |
| CN1126131C (en) | Handling device for electrical line sections, able to establish current and provide protection against high fault currents | |
| JP7221473B1 (en) | gas insulated switchgear | |
| CN114342029A (en) | Single-pole disconnector with vacuum interrupter as auxiliary contact system | |
| RU1786526C (en) | High-voltage generator switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |